<template>
  <div class="bannerBox">
    <div v-for="(item,index) in bannerList" :key="index">

        <div class="user-info-head active" v-if="item"  @click="editCropper(item,index)" >
          <img :src="getLogo(item) " title="点击上传图片" class="img-style" />
        </div>
        <div style="margin:6px 0px">
          <el-input v-model="bannerUrl[index]" placeholder="输入跳转链接" clearable style="width: 187px" @input="changeInput(bannerUrl[index],index)"/>
        </div>
    </div>
    <div class="user-info-head active" @click="editCropper()"></div>
    <el-dialog :title="title" :visible.sync="open" width="800px" append-to-body @opened="modalOpened"
               @close="closeDialog">
      <el-row>
        <el-col :xs="24" :md="24" :style="{ height: '350px' }">
          <vue-cropper ref="cropper" :img="options.img" :info="true" :autoCrop="options.autoCrop"
                       :outputType="options.outputType" :autoCropWidth="options.autoCropWidth"
                       :autoCropHeight="options.autoCropHeight" :fixedBox="options.fixedBox" @realTime="realTime"
                       v-if="visible" />
        </el-col>

      </el-row>
      <br />
      <el-row>
        <el-col :lg="2" :md="2">
          <el-upload action="#" :http-request="requestUpload" :show-file-list="false"
                     :before-upload="beforeUpload">
            <el-button size="small">
              选择
              <i class="el-icon-upload el-icon--right"></i>
            </el-button>
          </el-upload>

        </el-col>
        <el-col :lg="{ span: 1, offset: 2 }" :md="2">
          <el-button icon="el-icon-plus" size="small" @click="changeScale(1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="el-icon-minus" size="small" @click="changeScale(-1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="el-icon-refresh-left" size="small" @click="rotateLeft()"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="el-icon-refresh-right" size="small" @click="rotateRight()"></el-button>
        </el-col>

        <el-col :lg="{ span: 2, offset: 6 }" :md="2">
          <el-button type="danger" size="small" @click="deleteItem()">删 除</el-button>
        </el-col>
        <el-col :lg="{ span: 2, offset: 2 }" :md="2">
          <el-button type="primary" size="small" @click="uploadImg()">提 交</el-button>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<script>
import store from "@/store";
import { VueCropper } from "vue-cropper";
import { userManageUploadAvatar } from "@/api/system/user";

export default {
  name: "uploadPic",
  components: { VueCropper },
  // props: ["user", "typeInfo"],
  props: {
    user: {
      type: Object,
    },
    width: {
      type:Number,
      default:300
    },
    height: {
      type:Number,
      default:300
    },
  },

  data() {
    return {
      // 是否显示弹出层
      open: false,
      // 是否显示cropper
      visible: false,
      // 弹出层标题
      title: "上传图片",
      options: {
        img: "", //裁剪图片的地址
        autoCrop: true, // 是否默认生成截图框
        autoCropWidth: this.width, // 默认生成截图框宽度
        autoCropHeight: this.height, // 默认生成截图框高度
        fixedBox: true, // 固定截图框大小 不允许改变
        outputType: 'png',
      },
      previews: {},
      bannerList:[],
      bannerUrl:[],
      bannerIndex:0,
    };
  },
  mounted() {
    if(this.user.banner){
      this.bannerList=this.user.banner
      let data = this.user.banner
      let dataArr=[]
      data.forEach((it,index) => {
             if(this.user.bannerUrl[index]){
              dataArr.push(this.user.bannerUrl[index])
             }else{
              dataArr.push('')
             }
       })
      this.bannerUrl=dataArr
    }else{
      this.bannerList=[]
      this.bannerUrl=[]
    }
  },
  methods: {
    getLogo(url) {
      return process.env.VUE_APP_BASE_API + url
    },

    // 编辑头像
    editCropper(item,index) {
      this.open = true;
      if(item){
        this.options.img=this.getLogo(item)
        this.bannerIndex=index
        console.log('bannerIndex-1',item,this.bannerIndex)
        console.log(this.getLogo(item))
      }else{
        this.options.img=''
        this.bannerIndex=this.bannerList.length
        console.log('bannerIndex-2',this.bannerIndex)

      }



    },
    // 打开弹出层结束时的回调
    modalOpened() {
      this.visible = true;
    },
    // 覆盖默认的上传行为
    requestUpload() { },
    // 向左旋转
    rotateLeft() {
      this.$refs.cropper.rotateLeft();
    },
    // 向右旋转
    rotateRight() {
      this.$refs.cropper.rotateRight();
    },
    // 图片缩放
    changeScale(num) {
      num = num || 1;
      this.$refs.cropper.changeScale(num);
    },
    // 上传预处理
    beforeUpload(file) {
      if (file.type.indexOf("image/") == -1) {
        this.$modal.msgError(
          "文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。"
        );
      } else {
        const reader = new FileReader();
        reader.readAsDataURL(file);
        reader.onload = () => {
          this.options.img = reader.result;
        };
      }
    },
    // 删除图片
    deleteItem(){
      this.open = false;
      this.bannerList.splice(this.bannerIndex,1)
      this.bannerUrl.splice(this.bannerIndex,1)
      let data={
            bannerList:this.bannerList,
            bannerUrl:this.bannerUrl
          }
      this.$emit("getBannerlist", data);
      this.visible = false;

    },
    changeInput(){
      let data={
            bannerList:this.bannerList,
            bannerUrl:this.bannerUrl
          }
          console.log(data)
      this.$emit("getBannerlist", data);
    },
    // 上传图片
    uploadImg() {
      this.$refs.cropper.getCropBlob((data) => {
        let formData = new FormData();
        formData.append("avatarfile", data);
        userManageUploadAvatar(formData).then((response) => {
          this.open = false;
          // this.$set(this.bannerList,this.bannerIndex,response.imgUrl)
          // this.bannerList[this.bannerIndex]=response.imgUrl
          this.bannerList.splice(this.bannerIndex,1,response.imgUrl)
          this.bannerUrl.splice(this.bannerIndex,1,'')
          let data={
            bannerList:this.bannerList,
            bannerUrl:this.bannerUrl
          }
          console.log(data)
          this.$emit("getBannerlist", data);
          this.visible = false;
        });
      });
    },
    // 实时预览
    realTime(data) {
      this.previews = data;
    },
    // 关闭窗口
    closeDialog() {
      this.visible = false;
    },
  },
};
</script>
<style scoped lang="scss">
.bannerBox{
  display: flex;
  //justify-content: space-around;
  flex-wrap: wrap;

}
.user-info-head {
    position: relative;
    display: inline-block;
    height: 200px;
    width: 200px;
    border: 1px solid #000;
    text-align: center;
}
.user-info-head.active {
    position: relative;
    display: inline-block;
    //width: 375px;
    //height: 170px;
    width: 187.5px;
    height: 85px;
    border: 1px solid #000;
    margin-right: 20px;
}

img[src=""],
img:not([src]) {
    opacity: 0;
}

.user-info-head:hover:after {
    content: "+";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    color: #eee;
    background: rgba(0, 0, 0, 0.5);
    font-size: 24px;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    cursor: pointer;
    line-height: 200px;
}
.user-info-head.active:hover:after {
  content: "+";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  color: #eee;
  background: rgba(0, 0, 0, 0.5);
  font-size: 24px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  cursor: pointer;
  line-height: 85px;
}

.img-style {
    width: 100%;
    height: 100%;
    display: block;
}

</style>
